Antennaria friesiana subsp. neoalaskana

(A. E. Porsild) R. J. Bayer & Stebbins

Canad. J. Bot. 71: 1596. 1993.

Common names: Frost boil or outcrop pussytoes
Endemic
Basionym: Antennaria neoalaskana A. E. Porsild Sargentia 4: 71. 1943
Treatment appears in FNA Volume 19. Treatment on page 414. Mentioned on page 390, 413, 415.

Dioecious (staminates and pistillates in equal frequencies in populations). Plants 7.5–14 cm. Stolons 1–4 cm. Cauline leaves 4–20 mm. Heads 2–6. Involucres: staminate 4–6.5 mm; pistillate 7–8 mm. Corollas: staminate 2.5–3 mm; pistillate 3–4.5 mm. Cypselae 1.2–1.8 mm; pappi: staminate 3–4 mm; pistillate 3.5–5 mm. 2n = 56.


Phenology: Flowering summer.
Habitat: Arctic and alpine tundra, on dry rocky outcrops, fell fields, or gravelly frost boils
Elevation: 600–1500 m

Discussion

Subspecies neoalaskana is dioecious (sexual) and occurs from the eastern Brooks Range, Alaska, to the Richardson Mountains and into the central MacKenzie Mountains, on the Yukon-Northwest Territories boundary (R. J. Bayer 1993). It intergrades somewhat with the other two subspecies of Antennaria friesiana; it can be separated from other arctic members of Antennaria because it is dioecious and has 2–6 heads and well-developed stolons. It is a likely progenitor of the A. alpina complex.

Selected References

None.

Lower Taxa

None.
Randall J. Bayer +
(A. E. Porsild) R. J. Bayer & Stebbins +
Antennaria neoalaskana +
Frost boil or outcrop pussytoes +
N.W.T. +, Yukon +  and Alaska. +
600–1500 m +
Arctic and alpine tundra, on dry rocky outcrops, fell fields, or gravelly frost boils +
Flowering summer. +
Canad. J. Bot. +
Compositae +
Antennaria friesiana subsp. neoalaskana +
Antennaria friesiana +
subspecies +